[JLPT grammar] “don’t have to…”, ないでも or なくても?

Today I am going to share the homework correction quoted from my JLPT N5 course!
The student’s sentence is not correct. Can you find the mistake?


[Student’s sentence]





[My correction]

You don’t have to write your phone number.


◎〜なくてもいい “don’t have to”

Verb nai-form+くてもいい


You don’t have to eat it if you don’t like it.

You don’t have to come to the office tomorrow.


I hope my explanation helps you. 😊


In the JLPT course, all lessons come with homework. If you submit your homework, I will reply with corrections.
I can break down the Japanese grammar and point out mistakes, explaining the structure and nuances of Japanese in an easy-to-understand way.
You can also ask me any questions in as much detail as you want. I will teach you until you get it!